But the Summer League got its own dose of doppelgangery Friday evening when Denver’s Luke Harangody and Memphis’ Jack Cooley stormed the court simultaneously at the Thomas & Mack Center.

Jack Cooley (left) and Luke Harangody. Separated at birth?

The resemblance between the two former Notre Dame big men remains startling. It has been ever since Cooley showed up on the Fighting Irish’s campus in South Bend, Ind., as a freshman in Harangody’s senior season and, in time, had those used to hollering “Luuuuuuke!” switching over to “Coooooool!” instead.

Cooley is a little taller (6-foot-9 to Harangody’s 6-7), a little broader (though they’re listed at 244 and 245 pounds) and, frankly, a little paler. Harangody is two years older and was a second-round pick, No. 52 overall, to Boston in 2010 while Cooley went undrafted last month.

Look, we’re not going to tread into a cultural minefield of “Big Notre Dame guys born in Illinois all look alike,” but when you factor in the brush cuts of their thick, brown hair … well, heck, look at the photos.

“I mean, the joke gets old after a little bit. For both of us,” Harangody said, unsmiling, after scoring a game-high 17 points in less than 22 minutes off the Nuggets’ bench. “When Jack was a freshman, it was hard for him to go on the road. He’d hear it from the crowd too. And I think it’s nice that Jack has grown out of that shadow and become his own player. It’s not just people comparing him to me anymore. He’s Jack Cooley, not the kid who looks like Luke Harangody.”

That’s how well Cooley played for the Grizzlies squad. He opened some eyes with his jump shot and might have whipped up a job market for himself for an offer from overseas or an invitation to an NBA camp, averaging 14.7 points and 9.2 rebounds while shooting 52.7 percent (39-for-74) in six games. His numbers in four years at Notre Dame: 8.3 ppg, 6.4 rpg and an average of only 5.3 field-goal attempts.

“I was trying to show people I could shoot the ball a little more. I think I did a good job of balancing it,” Cooley said. “The way I had to play there was a little different from the way I could play – I wasn’t required to shoot as much. It didn’t fit the system. Now it’s like, ‘Oh, Jack can shoot the ball.’ Because I’m in an offense in the NBA where that’s required.”

Said Harangody: “I wish I could have seen him play more here. Every time I look at the box score, he’s having a great game. The way he was shooting the ball, that’s something I don’t they saw a lot at Notre Dame. He’s got a helluva motor – I think that’s one thing that’s going to keep his career going.”

The alumni association was reciprocal Friday night. While Harangody – who averaged 11.3 points and hit eight of his 14 3-pointers – said he has “a couple nice options overseas” for this season, he too is hoping to stir up interest from the league. Cooley considers that a no-brainer.

“I think he’s still extremely effective,” the Memphis big man said. “He was playing the ‘three’ out there and hitting shots like a shooting guard. He can play offense with some of the best of ‘em. I think he should get another chance and then [both of us] can be in the league.”

OK, but if that happens, the old clone clowning surely will rev up.

“I don’t mind it at all – Luke’s a great player and he’s an even better person,” Cooley said. “If you’re going to be compared to somebody, you might as well be compared to somebody who’s really good.”